CVE-2021-29961

Reference Links

• https://bugzilla.mozilla.org/show_bug.cgi?id=1700235
• https://www.mozilla.org/en-US/security/advisories/mfsa2021-23/
• https://security.gentoo.org/glsa/202107-09
• https://www.mozilla.org/security/advisories/mfsa2021-23/

Parent vulnerabilities

(Appears in the following advisories)

• MFSA2021-23

Peer vulnerabilities

(Found alongside the following vulnerabilities)

• CVE-2021-29965
• CVE-2021-29960
• CVE-2021-29961
• CVE-2021-29963
• CVE-2021-29964
• CVE-2021-29959
• CVE-2021-29962
• CVE-2021-29967
• CVE-2021-29966

Frequently Asked Questions

• What is the vulnerability ID?

  The vulnerability ID is CVE-2021-29961.

• What is the title of the vulnerability?

  The title of the vulnerability is 'When styling and rendering an oversized <select> element Firefox did not apply correct clipping which allowed an attacker to paint over the user interface.'

• What is the affected software?

  The affected software is Mozilla Firefox version up to exclusive version 89.

• What is the severity of the vulnerability?

  The severity of the vulnerability is medium.

• How can I fix the vulnerability?

  To fix the vulnerability, update your Mozilla Firefox browser to version 89 or later.